Use cpu index instead of the machine dependend, not very expressive
cpuid when naming user-visible kernel entities.

Match the docs: MUTEX_DRIVER/SPIN are now only for porting code written
for Solaris.

don't bother to set thread's priority by ourselves,
as kthread_create does it for us now. from Andrew Doran.

- don't assume the order of cpus in a CPU_INFO_FOREACH loop.
- remove unused structure members.
- simplify.

Current convention is to name/number objects after ci->ci_cpuid, so do
that when creating the kthreads. We may want to change this.

Improve per-CPU support for the workqueue(9):
- Make structures CPU-cache friendly, as suggested and explained
by Andrew Doran. CACHE_LINE_SIZE definition is invented.
- Use current CPU if NULL

Improve per-CPU support for the workqueue(9):
- Make structures CPU-cache friendly, as suggested and explained
by Andrew Doran. CACHE_LINE_SIZE definition is invented.
- Use current CPU if NULL is passed to the workqueue_enqueue().
- Implemented MI CPU index, which could be used as an index of array.
Removed linked-lists usage for work queues.

The roundup2() function avoids division, but works only with power of 2.

Reviewed by: <ad>, <yamt>, <tech-kern>

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hide internals of struct work.

workqueue_destroy: fix a use-after-free.

Make MP parts friendly with various ports (especially UP):
- #ifdef code parts, which uses CPU_INFO_FOREACH/CPU_INFO_ITERATOR
- use ci_cpuid only in MP case
- include machine/cpu.h

Implementation of per-CPU work-queues support for workqueue(9) interface.
WQ_PERCPU flag for workqueue and additional argument for workqueue_enqueue()
to assign a CPU might be used. Notes:
- For now

Implementation of per-CPU work-queues support for workqueue(9) interface.
WQ_PERCPU flag for workqueue and additional argument for workqueue_enqueue()
to assign a CPU might be used. Notes:
- For now, the list is used for workqueue_queue, which is non-optimal,
and will be changed with array, where index would be CPU ID.
- The data structures should be changed to be cache-friendly.

Reviewed by: <yamt>, <tech-kern>

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Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

typedef pri_t and use it instead of int and u_char.

workqueue_exit: update a comment.

use cv_signal rather than cv_broadcast where appropriate.

Merge newlock2 to head.

merge yamt-splraiseipl branch.

- finish implementing splraiseipl (and makeiplcookie).
http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
- complete workqueue(9) and fix its ipl problem

merge yamt-splraiseipl branch.

- finish implementing splraiseipl (and makeiplcookie).
http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
- complete workqueue(9) and fix its ipl problem, which is reported
to cause audio skipping.
- fix netbt (at least compilation problems) for some ports.
- fix PR/33218.

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remove some __unused from function parameters.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

add workqueue_destroy().

workqueue_create: use kmem_alloc rather than malloc.

Use for in a forever loop as per KNF.

merge ktrace-lwp.

add a simple "do it in thread context" framework.